GE
Grid Solutions
7
WORLDWIDE
Hydran M2-X
YEAR
WARRANTY
Enhanced Monitoring with Extended Sensor Life
Proven Technology
When a transformer’s insulation system is overstressed, the oil and paper undergo chemical
degradation producing both hydro-carbon gases and moisture that dissolve into the insulating oil. This
increased ageing will shorten the transformer’s life, impact its reliability and in some cases can even
lead to catastrophic failures.
• Field proven solution, delivering online DGA
solutions for over 40 years
The Hydran M2-X is the next generation of the field-proven family of Hydran DGA monitoring solutions.
It provides continuous monitoring of gas and moisture levels to alert users of developing faults and
minimize the risk of unplanned outages. The M2-X builds on GE’s strong domain expertise to deliver an
optimized, low maintenance monitoring device with an extended sensor life.
• 7 year product warranty
Key Benefits
• Small form factor, no moving parts, low maintenance, and support for APM software analytics,
enabling fleet level deployments
• Condition monitoring for a wide range of transformers with mineral insulating oils or ester based
fluids (natural and synthetic)
• Extending beyond DGA monitoring, through the connection of sensors, the Hydran M2-X can monitor
other parameters such as top oil temperature, load current and through the use of IEEE based
mathematical models, can provide further insight on changing transformer conditions
• Providing critical transformer gas behavior data for Asset Performance Management (APM)
strategies, facilitating planning of site intervention and maintenance activities
• Supports a wide range of communication methods and protocols to enable easy and secure
integration with GE's digital platforms including Perception™ transformer fleet management
software, DS Agile substation HMI, PREDIX™, and other APM software tools, historians and SCADA
systems
Applications
Advanced, flexible and expandable DGA monitoring solution tailored for utility and industrial
transformers.
Easily integrates with Kelman multi-gas DGA devices and the Multilin 845 protection & control
relay to provide continuous synchronization of chemical and electrical measurements for enhanced
transformer monitoring.
• Over 50,000 Hydran units sold worldwide
• Estimated sensor life in excess of 10 years*
Expandable
• Compatible with various transformer oil types
(standard mineral insulating oils and newer
natural and synthetic ester based fluids)
• Available with the traditional Hydran
composite gas (H₂, CO, C₂H₂, C₂H₄) sensor or
with a discrete Hydrogen only (H₂) sensor
• Easily upgradable in the field to accept
analogue signals to monitor other key
transformer parameters
• Computation of winding hot spot and other
IEEE transformer models for enhanced
diagnostics of the transformer’s condition
(depending on sensors installed)
• Integrates with Kelman multi-gas DGA devices
Intuitive
• Easy to install on a single existing transformer
valve, often without an outage required
• Integrated display and keypad for simplified
local user interaction and data visualization
• Built-in moisture sensor provides water in oil
measurement, critical to identifying paper
degradation and leaking gaskets
• Compatible with GE’s acclaimed Perception™
software to download, trend and analyze
transformer health data
Technical Specifications
MEASUREMENTS
Fuel cell type sensor behind a gas permeable membrane in
contact with transformer insulating oil
Communications
Range
Standard RS-485 (terminal block), isolated to 2000Vac RMS, for
remote communication or connection to local Hydran network
Accuracy**
Response time
Enclosure
Material: Aluminum
Rating: NEMA Type 4X certified, meets requirements of IP56
Standard RS-232 port (DB-9 connector), for local connection to
computer for configuring the system
25-2000 ppm (volume/volume H₂
equivalent)
±10 % of reading ±25 ppm
10 minutes (90 % of step change)
Power Requirements
90–132 Vac or 180–264 Vac switch mode universal power supply,
47–63 Hz, 650VA max
Optional: TCP/IP over Ethernet Copper or Fiber Optic
10/100Mbits/s
Mechanical
Has a 1.5 ” NPT male thread, can mount on 1.5 ” NPT valve or
greater using optional adapters
"Composite Gas" Sensor
Relative sensitivity
H₂: 100 % of concentration
CO: 15 ± 4 % of concentration
C₂H₂: 8 ± 2 % of concentration
C₂H₄: 1.5 ± 0.5 % of concentration
Repeatability
Highest of ±5 % of reading or ±5 ppm
Protocols
Standard: Modbus®, DNP 3.0
Optional: IEC 61850 over TCP/IP
Alarms
Gas and Moisture Alert (Hi), Gas and Moisture Alarm (HiHi),
System Alarms
Installed weight
Shipping weight
"Discrete H2" Gas Sensor (Mineral oil only)
Relative sensitivity
H₂: 100 % of concentration
Interference from CO, C2H2 and C2H4
less than 3 % of concentration
Repeatability
Highest of ±5 % of reading or ±10 ppm
Gas alarms can be set on gas level reached or on hourly or daily
trend (gas level rate of change)
Moisture alarms can be set on level reached or average level
PRODUCT OPTIONS & SENSORS
Finned heat sink adapter (1.5 ”) for use when ambient temp
40 °C (104 °F) or oil temp > 90 °C (194 °F).
Alarms can also be configured for optional additional analogue
inputs or for calculation results from optional transformer models
Valve adaptors 2 ” to 1.5 ”
Transformer models calculations (for mineral oil only)
Moisture Sensor
Thin film capacitive type sensor immersed in insulting oil
5 dry contact relays (type C, SPDT), NO/NC, 3A@250Vac resistive
load, 3A@30Vdc resistive load
Analogue input cards, 4-20mA, 10V load max, isolated to 2000Vac
RMS
Range
Accuracy
Repeatability
Manual Sampling
Easily accessible external oil sampling port, for use with glass
syringe with Luer stopcock
Dual digital input cards for dry contacts, internal wetting 24Vdc,
isolated 2000Vac
0-100 % RH
± 2 % RH
± 2 % RH
ENVIRONMENT
Conditions
Operating ambient
temperature
Operating ambient
humidity
Oil temperature at
valve
Oil pressure at valve
FEATURES
Display
Backlit LCD, 128 x 64 pixels
Keypad to setup unit and acknowledge alarms
Dimensions
315 x 219 x 196 mm
12.4 x 8.63 x 7.72 "
7.5 Kg (16.5 lb)
9.0 Kg (20 lb)
>
Analogue output cards, 4-20mA, 10V load max, isolated to
2000Vac RMS
PSTN analogue modem V92/56K
-40 °C to +55 °C (-40 °F to +131 °F)
GSM/GPRS wireless modem
0-95 % RH, non-condensing
Network Ethernet communication using copper or multimode
fiber optic (ST)
Oil temperature sensor, magnetic mount, (4-20mA)
-40 °C to +105 °C (-40 °F to +221 °F)
with finned heat sink adapter option
0-700KPa (0-100psi)
Vacuum resistant sensor
Split core load CT (4-20mA)
Ambient temperature sensor (4-20mA)
Anodized Aluminum Enclosure - CRC required
(minimum quantities applicable)
Hydran M2X
Oil type
-
Ox
O1
Sx
Ax
Bx
Cx
Dx
Px
Gx
VCx
Vx
Ex
Mx
Lx
NE
Natural Ester Oil (CRC Required)
SE
Sensor type
Synthetic Ester Oil
S1
Composite gas sensor
H2
Card slot A,B,C,D
Communication Protocol Options
Hydrogen only sensor
A0
B0
C0
D0
No analogue card
A1
B1
C1
D1
Analogue Input card, 4-20mA
A2
B2
C2
D2
Analogue Output card, 4-20mA
A3
B3
C3
D3
Digital dual input card
P0
Modbus/DNP3 over RS 232/RS 485 Standard
P1
Modbus/DNP3 over TCP/IP Ethernet Card wired connection, 10/100 Mbits/s
P2
Modbus/DNP3 over TCP/IP Ethernet MM Fibre, ST connectors,10/100 Mbits/s
P3
Modbus/DNP3 over PSTN Analog Modem
P4
Modbus/DNP3 over GPRS/3G/4G Wireless Modem (CRC Required)
P5
Valve Type
Selection Description
Mineral Oil
IEC-61850 Protocol over TCP/IP, with RJ45 Connector (CRC Required)
G0
Installtion on gate valve (standard)
G1
Valve Connection
Installation on globe valve
VC0
Standard Connection - 1.5" Male NPT
VC1
Valve adaptor 2" Male NPT to 1.5" Female NPT
VC2
Heat Finned Adaptor
Valve adaptor 1" Male NPT to 1.5" Female NPT
V0
No Finned Heat-Skin Adaptor
V1
Enclosure
Transformer Models
Finned Heat-Skin Adaptor - 1.5" Male NPT
E0
Aluminum -Standard
M0
No Transformer Models
M1
Language
*Fuel cell sensor life projection based on accelerated aging test showing estimated MTTF of 11.5 years
** Accuracy is quoted for the sensors at calibration, for H₂ equivalent performance
Transformer Models Enabled (Requires additional sensors)
L0
English labels and manuals
L1
French labels and manuals
L2
Spanish labels and manuals
L3
German labels and manuals
L4
Russian labels and manuals
GE Grid Solutions
Lissue Industrial Estate East
Unit 1, 7 Lissue Walk
Lisburn BT28 2LU
United Kingdom
Tel: +44 (0) 2892 622915
GEGridSolutions.com
GE, the GE Monogram, Hydran, Perception, DS-Agile and PREDIX are trademarks of the General Electric
Company.
Modbus is a registered trademark of Schneider Automation, Inc. IEEE is a registered trademark of the Institute
of Electrical and Electronics Engineers Inc. IEC is a registered trademark of Commission Electrotechnique
Internationale.
GE reserves the right to make changes to specifications of products described at any time without notice and
without obligation to notify any person of such changes.
© Copyright 2021, General Electric Company. All Rights Reserved.
HydranM2-X-Brochure-EN-2021-12-Grid-GA-1644